Feb 17 04:46:17 byfor postfix/qmgr[15224]: E351F35E16B8: from=, size=365, nrcpt=1 (queue active)
Feb 17 04:46:18 byfor postfix/smtp[18094]: E351F35E16B8: to=, relay=gmail-smtp-in.l.google.com[173.194.73.27]:25, delay=0.47, delays=0.02/0/0.18/0.26, dsn=2.0.0, status=sent (250 2.0.0 OK 1487306778 y19si4381187ljd.287 - gsmtp)
Feb 17 04:46:18 byfor postfix/qmgr[15224]: E351F35E16B8: removed--9323135E72D9.1487261431/byfor.ru--
From MAILER-DAEMON Thu Feb 16 16:11:37 2017
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X-Original-To: root@byfor.ru
Delivered-To: root@byfor.ru
Received: by byfor.ru (Postfix)
id 8A4D835E72DB; Thu, 16 Feb 2017 16:11:37 +0000 (UTC)
Date: Thu, 16 Feb 2017 16:11:37 +0000 (UTC)
From: MAILER-DAEMON@byfor.ru (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
To: root@byfor.ru
Auto-Submitted: auto-replied
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
boundary="A6C6F35E72D9.1487261497/byfor.ru"
Message-Id: <20170216161137.8A4D835E72DB@byfor.ru>
This is a MIME-encapsulated message.
--A6C6F35E72D9.1487261497/byfor.ru
Content-Description: Notification
Content-Type: text/plain; charset=us-ascii
This is the mail system at host byfor.ru.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
: host gmail-smtp-in.l.google.com[2a00:1450:4010:c07::1a]
said: 550-5.7.1 [2a00:f940:2:1:2::aec] Our system has detected that this
message does 550-5.7.1 not meet IPv6 sending guidelines regarding PTR
records and 550-5.7.1 authentication. Please review 550-5.7.1
https://support.google.com/mail/?p=IPv6AuthError for more information 550
5.7.1 . 7si3655556ljv.263 - gsmtp (in reply to end of DATA command)
--A6C6F35E72D9.1487261497/byfor.ru
Content-Description: Delivery report
Content-Type: message/delivery-status
Reporting-MTA: dns; byfor.ru
X-Postfix-Queue-ID: A6C6F35E72D9
X-Postfix-Sender: rfc822; root@byfor.ru
Arrival-Date: Thu, 16 Feb 2017 16:11:36 +0000 (UTC)
Final-Recipient: rfc822; oxword777@gmail.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.1 [2a00:f940:2:1:2::aec] Our system has detected
that this message does 550-5.7.1 not meet IPv6 sending guidelines regarding
PTR records and 550-5.7.1 authentication. Please review 550-5.7.1
https://support.google.com/mail/?p=IPv6AuthError for more information 550
5.7.1 . 7si3655556ljv.263 - gsmtp